VDB-237695 · CVE-2022-36648 · EUVD-2022-39351

QEMU up to 7.0.0 Rocker Device Model of_dpa_cmd_add_l2_flood denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.2	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in QEMU up to 7.0.0 and classified as problematic. The impacted element is the function of_dpa_cmd_add_l2_flood of the component Rocker Device Model. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2022-36648. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in QEMU up to 7.0.0 (Virtualization Software) and classified as critical. This issue affects the function of_dpa_cmd_add_l2_flood of the component Rocker Device Model. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially execute code on the host via execute a malformed program in the guest OS.

The weakness was published 08/23/2023. It is possible to read the advisory at lists.nongnu.org. The identification of this vulnerability is CVE-2022-36648 since 07/25/2022. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/17/2026). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 232180 (Linux Distros Unpatched Vulnerability : CVE-2022-36648), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (232180) and EUVD (EUVD-2022-39351). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Virtualization Software

Name

QEMU

Version

License

open-source

Website

Product: https://www.qemu.org/

CPE 2.3info

🔍

CPE 2.2info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 10.0
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 232180
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-36648

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/25/2022 🔍
08/23/2023 +394 days 🔍
08/23/2023 +0 days 🔍
06/17/2026 +1029 days 🔍

Sourcesinfo

Product: qemu.org

Advisory: lists.nongnu.org
Status: Not defined

CVE: CVE-2022-36648 (🔍)
GCVE (CVE): GCVE-0-2022-36648
GCVE (VulDB): GCVE-100-237695
EUVD: 🔍

Entryinfo

Created: 08/23/2023 07:38
Updated: 06/17/2026 21:23
Changes: 08/23/2023 07:38 (39), 09/14/2023 14:17 (11), 08/03/2024 15:04 (15), 03/06/2025 18:42 (3), 06/17/2026 21:23 (1)
Complete: 🔍
Cache ID: 216::103